Which muscles react quickly, and which tire quickly?

Amy gained cardiovascular health benefits from running consistently over the past year. now she runs inconsistently and has lost some of those health benefits. this principle is known as?

Some infants in poorer households are not fed this important food for all babies. what is it? a. baby food b. breast milk or infant formula c. water. d. all of the choices are correct

John is jogging on a winter day. the outdoor temperature is 31° f. yet his body temperature is 98°f. which term best describes the process causing this difference in temperature?